24AA256-I/MF Microchip Integrated Circuit (Small Outline No-lead) In Stock
24AA256-I/MF is a 256 Kbit I2C serial EEPROM from Microchip Technology in a compact DFN-8 package. It supports clock frequencies up to 400 kHz and offers 1,000,000 write/erase cycle endurance with 200-year data retention. Ideal for embedded systems, IoT devices, and industrial equipment requiring reliable non-volatile data storage.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 24AA256-I/MF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3700(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 256 Kbit (32 KB) serial EEPROM with I2C interface up to 400 kHz clock frequency
- Up to 1,000,000 write/erase cycle endurance for high-reliability data logging
- 200-year data retention ensures long-term non-volatile storage integrity
- Compact DFN-S-8 (Small Outline No-lead) package minimizes PCB footprint
- RoHS-compliant lead-free construction suitable for modern environmental compliance
Applications
The 24AA256-I/MF is widely used in embedded systems and IoT devices for storing configuration data, calibration parameters, and firmware settings in non-volatile memory. Its I2C interface with up to 400 kHz clock speed makes it easy to integrate with microcontrollers in industrial sensors, medical devices, and consumer electronics. The combination of 1,000,000 write cycles and 200-year data retention makes it suitable for applications demanding high-reliability long-term data storage.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | DFN-S-8 |
| Factory Lead Time | 13Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 0.4MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e3 |
| Memory Density | 262144bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 32768words |
| Number of Words Code | 32000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 32KX8 |
| Output Characteristics | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 2.5V |
| Qualification Status | Not Qualified |
| Reverse Pinout | NO |
| Screening Level | AEC-Q100 |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000005A |
| Supply Current-Max | 0.003mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.7V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 24AA256-I/MF:
suggested
suggested
suggested
suggested
suggested
suggested
suggested
suggested
Frequently Asked Questions
What is the storage capacity and interface of the 24AA256-I/MF EEPROM?
The 24AA256-I/MF provides 256 Kbits (32 KB) of non-volatile EEPROM storage accessed via a 2-wire I2C serial interface supporting clock frequencies up to 400 kHz, making it straightforward to connect to any I2C-capable microcontroller.
How many write cycles can the 24AA256-I/MF endure before reliability degrades?
This device is rated for up to 1,000,000 write/erase cycles per page, making it suitable for applications with frequent data updates such as event counters, configuration storage, and data logging in industrial and IoT equipment.
Which PCB form factor does the 24AA256-I/MF use and how does it affect board space?
The 24AA256-I/MF is housed in a DFN-S-8 (Small Outline No-lead, 8-pin) package, which has a very small footprint compared to SOIC-8, helping designers conserve PCB area in space-constrained IoT nodes and wearable electronics.
For an industrial sensor needing long-term calibration storage, why choose the 24AA256-I/MF over a larger NOR flash?
The 24AA256-I/MF offers 200-year data retention and I2C simplicity in a compact 8-pin DFN package, eliminating the need for SPI drivers and large flash overhead when only 32 KB of calibration or configuration data must be stored across a -40°C to 85°C operating range.
Related Guides
150141RS73100 Red LED Indicator and Current-Resistor Design Guide
Design a reliable 150141RS73100 red LED indicator with worst-case resistor sizing, GPIO checks, PWM drive, layout, and production validation.
Jul 11, 2026
742792651 Ferrite Bead EMI Filter and Power Integrity Design Guide
Practical guidance for using 742792651 in ferrite-bead EMI filters, including bias, DCR, damping, layout, and validation.
Jul 11, 2026
How to Choose a Ferrite Bead for EMI Suppression Rails: Selection Guide
Compare 742792651 and related ferrite beads by impedance, current rating, DCR, package, layout, and EMI test context.
Jul 10, 2026
150141BS73100 Design Guide for 3528 Status Indicator LED Circuits
Design 3528 status indicator LED circuits with 150141BS73100: current setting, resistor sizing, polarity, optics, and sourcing checks.
Jul 10, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3700 | $0.37 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”